Temperature-maintaining means for boiler-filling apparatus



TEMPERATURE MAINTAINING MEANS FOR BOILER FI LLING APPARATUS Original Filed Jan. 29 1920 advanee the filling' -and'washelitawaters, and

? T Patex lted July 1926 BENQER OTIS," or meememowfxiimors. i V 1 MPERATI I Easmmimmmeymmms11 i ;noxnii gfmxamiislklfieemtlms This eppli c atien a2 v 1 means :"for neeeiving :and salvaging heat units and hotiwate-i': Efmmithe zpro -llets blown efi from floeomotive boilers, the sal vagedfheat, separated in fthe -:m'-m ."df vapor er *steamfb'eing absel bed in condensing w-ater i-Whieh' passesito wstOrage'taHkifQi filling wvater' Lat -a ltemperatnre suitable for boilei filling gpurposesy zmd the-salvaged lwate r being I eolleeted in aanothertank :fmr' 'use 5 in washing: outi'boilers and in systems of thj-skind it isusual itovemploy Esteem pumps-i01- --advaneing Water from the we speetive tanks to locomotiye stalls :Where the #Vater is consumed, mid ptofhjavea1 areturn flew pipe er circulating line in series ;;With

the. filling'water supplyline-iwhieh leads :back to the filling' wgat'er tank, so that a 510w cepacity circulation will be maintained through the filling jliixe even? when Water is not being consumed and thus .keepup :the

temperzture at *the points 10f :consumption.

the waiter 'IBUIZ-RQQ by the circulating line and steam exhausted:from;thezpumps :Whmh

temperature of Wet r issuing from the Efilln 'fi nkbel wia; p de rminedzdegree a pprtien off the -iout'putfi of the pump El i be by -p ss dwo-rshort cincuifiQdQMOk t th tan-k thr ggh; rela vely short "path. kin

W f 9 :by m i mr fl g ieible nti 1n the course of which it mets a'rgdgabg rbssteamai ffiifwf bly-texheust tea 'ffrom the pumpmg gme, or; engines,,js1ifii entiin ume a o restqre rthe tempemture" of'Qthe 'Ehe vaecemp apying; dfatwiigg represent v 05 diagrammatic Yiewy,- 1n ssideelevatiml, if eparating condensing, tndffilliyg ater i fl "i s f A ih ilei l wash ng Sys- (toge her i hmrts immediately Jae *e ss ry (there o, and? among Whidlfim .t 7o

.bedi d the @iieetunes lithep esent in? tlvlgepresents e blmvq. l spje 0f 0 washmgsystemfi hichi ee ves thepsn hm blown. off :f-ro m eleeomgtivej, grzotherlbiler', t

' and qdelivers the same: .tQ} a separator .12.,

a spip iiid conden e *4; wh re a pr y i 001d wa er, will be released in eea fl b'in rele mn there o 2 {of 'l hrnjqstat' .cqn qlling val e 6 ii-1; old w. m: .1mm; .tf em -Whieh nde setfiresii taht but spray ;pfipe :tenk:9-.. incidentally eondliser;, .mevlike s tank rises sufiiclently to glbse the ling am an i-9:9 mime mil, 121,1.. mir-laj, ae ilpbnfcheltheiihe emum pip sewith live-steam; .pipe" g s5 g'edeterin ned be restricted'togthe consumption on the i V circulation as thus water in tank line', that is to say, if water is discharging freely from theline 15, steam pressure will' be proportionately increased and the output of the pump enlarged to meet the demand.

. '18 represents a circulating line or return flow .pipe or reduced capacity which receives water-from the filling line 15" and brings it back toward the tank, or,as'has been proposed prior to the presentinvention, delivers return flow water to an auxiliary;

condenser 19 where the return fiow water 'mee'ts steam delivered thereto by the exhaust pipe 20 of the steam pump, 13, there steam and restoring to the water of circulation, temperature that it may have lost by radiationin its path through thepipes 15and18."

It sometimes happens that the system of far described is not sufthe temperature of filling 9 up; to the degree desirable for boiler filling purposes, particularly when the drain on pipe 15 for boilerv filling purposes is such as to interrupt the return flow through pipe 18. The present invention remedies this defect by short circuiting or by-passing'a sufficient proportion of the output of the pump 13 back to the tank '9 through a by-pass pipe 21 branching from the filling line 15 through a thermostatie ficient to" keep.

cally controlled valve 22, and discharging into a suitable condenser, preferably the auxiliary condenser 19, where itmeets a steam supply, preferably exhaust steam from the pump 13, so that without interrupting the delivery of water over the filling line 15, a portion of the water in tank 9 will be circulated through a heater and ,back to the tank, the temperature of water in the tank being'thereby restored; The by- 7 pass valve 22 is opened by a thermostat 28 in the intake pipe let of the pump, and is adjusted to react and open the valve 22 whenever the temperature of'the waterin the pipe 14- is below a predetermined degree.

The flow of hot by-passed water from the auxiliary'condenser 19 back to tank 9 is through/pipe 2a to the pipe 8 which leads from the main condenser 4 to the tank 9, as

1 already explained.

" I claim:

1. In a boiler filling apparatus, having a tank and a channel through which water flows'from said tankto a place of consumption, a bypass channel leading from the channel first-named back to the tank and having a va'lve,'a thermostat controlling saidvalve and which isv controlled by the temperature of water issuing from the tank, through the channel first named, and means for heating --water returnin to the tank through saidby-pass channel. I

1 said channel.

saving the heat units of the exhaust 2. 'In a boiler filling apparatus, a tank, a

thermostat subject to temperature influence of water issuing from the tank, controlling said valve, and a heater forming a part of 3. In a boiler filling apparatus, a tank, a fillingline for delivering water from said tank'to a boiler, a byr-pass. conduit leading froma portion ofthe filling line adjacent to the tank back to the tank, a. heaterinter-- V posed in said conduit, a valve for openlng: and closing communication between the conduit and the filling line, and a thermostat controlling said valve located in the filling line between said valve and the tankp e. In a boiler filling apparatus, a tank, a filling line for delivering water from said tank to a boiler, a by-pass pipe communicating with said filling line, a valve controlling such communication, a thermostat subject to temperature effect of waterfiowing in the filling line, a condenser into which the by pass pipe discharges and which in turn delivers back supplying steam to said condenser.

5. In a boiler filling apparatus, atank, a filling line for supplying water from said tank to a boiler, a pump interposed in said line, a by-passpipe connected with said line on the other side of the pump from the tank, a thermostat inserted in said linebetween the pump and the tank,a valve controlling comn'iunication between the bypass pipe and the filling line, said valve being controlled by said thermostat, a heater adapted to raise the temperature of water passing through said by-pass pipe, and a channel of communication for water so heated which leads back to the tank.

6. Ina boiler filling apparatus, a tank, a filling line for'supplying ,waterfrom. said tank to a boiler, a pump interposed in said line, a bye-pass pipe connected. with said line on the other side of the pump from the tank, a thermostat inserted in said line between the pump and the tank, a valve controlling communication between theHby-pass pipe and the filling line, said valve being con to the tank, and meanszior trolled by said thermostat, aiheater adapted haust steam from said engine being delivered to said heater.

7. In a boiler filling apparatus, a tank, a filling line for deliveringwater' from said 'tank to a boiler, a pump forcing water through said filling lineya returnflow {line receiving water tromfsaid I filling 'lillfi,, a.

heziter Adapted to act upon.wa' er,refi11 hed and a th ermdstat cofifiiolling said V'alvehhd .through said return flow line, a channel subject to temperature 'influencepfmwatel i through which return -water thus heated flowing i11"thefil1ing1ine. r V 5 reaches the tank, a by -pasjs channel deliver- Signed at GhicaigoQIllino is;, his

5 ing filling Water through saidheater froma of June, 1923. V V point near the pump, a Valve controlling a V 1 1-- flow of Water thrqugh s a i d by-pass'channel f; GER OTIS. 

